摘要
对2763份云南稻种资源芽期抗寒性进行了鉴定。筛选出毫别绕等高抗品种19份,抗寒品种60份。高抗和抗的品种频率为2.86％。云南稻的抗寒性在类型间差异极显著:粳亚种极显著地强于籼亚种,陆稻极显著地强于水稻。按8大类分,粳水糯类抗性最强,其次为粳水粘类;而籼水糯和籼水粘类抗性最差。
The cold tolerance (buding perid) of 2763 Yunnan rice varieties (Oriza sative L.)were assessed. In them, 19 ones containing variety Haobierao presented high resistance to cold and 60 ones were resistant, the frequency of them was 2.8%. There were significant differance in cold tolerance among rice types, Japonica extremely stronger than Indica and the upland rice stronger than paddy one. As 8 classifications,the Japonica-paddy-glutinous group was the strongest in cold tolerance.the second was Japonica-paddy-nonglutinous group, Indica-paddy-nonglutinous and Indica-paddy-glutinous groups were worst.
出处
《西南农业学报》
CSCD
1990年第4期22-25,共4页
Southwest China Journal of Agricultural Sciences
基金
云南省自然科学基金"七五"国家科技攻关资助项目
关键词
稻
种质资源
抗寒性
云南
rice, germplasm resources, cold tolerance, Yunnan
